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No. 613,36l. Patented Nov. I, i898.

G. DELPLACE.

DRYING KILN.

(Applicatioq filed Sept. 22, 1S97.\

(No Model.) 3 Sheets-Sheet 2.

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No. 6I3,36I. Patented Nov. I, |898. G. DELPLACE.

DRYING KILN.

(Application filed Sept. 22, 1897.)

(No Nudel.) 3 Sheets-Sheet 3.

UNITED STATES PATENT EEICE.

GUSTAVE DELPLACE, OF NAMUR, BELGIUM.

DRYING-KILN.

SPECIFICATION forming part of Letters Patent No. 613,361, dated November 1, 189g.

Application filed September 22, 1897. Serial No. 652,599. (No model.)

To all whom it may concern:

Be it known that I, GUsTAvE DELPLACE, a subject of the King of Belgium, residing at Namur, Belgium, have invented certain new and useful Improvements in Drying-Kilns, of which the following is a full, clear, and exact specification.

This invention has been patented to me in Belgium under date of April 6, 1895, No. 114,952.

The invention which is the subject ofthe present application relates to improvements in drying-kilns for all kinds of materials or solid products.

The object of my invention is to avoid the necessity of the employment of any kind of trituration, mechanical manipulation,or tools upon the products intended for drying; and the invention provides, moreover, for a drying-kiln which operates rapidly by means of hot air or fuel-gas mixed with a greater or less quantity of air, regulated in accordance with the temperature which is desired.

The details of my invention are shown in the accompanying drawings, in which- Figure l is a longitudinal section of the kiln. Fig. 2 is a lateral elevation, and Fig. 3 is a cross-section, of the kiln. Fig. 4 is a cross-section of a portion of the wall, and Fig. 5 is a front view of the same.

The drying-kiln consists of a brick-built chamber G, containing a certain number of steps or stories E' E2,-each of which consists of a platform divided into movable plates P P2. Each of the plates P of the same step or story E', as an example, is'carried on an axle or shaft o, Fig. 3, with which it is solidly connected and which ends at one end and on the outside of the kiln in a small crank m. Therefore we nd on each step or story at the rear of the kiln as many crank-handles mas there are plates P or P2, &c., per story. The result of this arrangement is that every swinging or oscillating motion communicated by any mechanical means whatever, or preferably by the action hereinafter described, to the cranks m is transmitted to the plates which are mounted solidly upon the same axle or shaft. These plates can consequently be at one time in the normal horizontal position shown in Fig. l on the stories E E3 E4, dac.,

for the plates P P3 P4, &c., and then in the oblique position shown as an example on story E2 for plates P2.

In order to allow of an easy changing and cleaning ofthe plates P' P2, they can be easily taken out from the inside of the kiln, owing to the particular construction of the Walls of the kiln. These walls are formed by girders K, fitted into the side walls of the kiln, and by separate bodies set between these girders or beams. Each of these bodies comprises a piece L, provided with notches N, sufficient for the free passage of the horizontal arm of the crank-handles on, which carry the plates P P2, also a movable angle-iron K- an E-iron, as an example-which is slipped on piece L and under the girder or beam K. The result of this constructive arrangement of the walls is that in order to take out or renew these plates P P2 it is sufficient to withdraw the angle-irons K and to lift the crankhandles m from the notches N of the pieces L on which they rest.

The mechanism which I prefer to use in order to give the plates of the same story their oscillating movement is the following: All crank-handles m of the same story are attached to a bar or rod F, which acts as a connecting-rod. Each story has its own connecting-rod F'F2 F3, &c. As shown in the design, the coupling of the connecting rods or bars F F2 F3, &c., with the cranks m occurs alternatelywaccording to the story, now in one direction and then in the other. This arrangement permits the plates on one story to be swung in one direction, while those of the story immediately below may be swung in the other; also, as shown in the drawings, the plates P' of story E will swing to the right when the connecting-rod F is pushed to the left, and the plates P2 of story E2 will swing to the left when the bar F2 is drawn to the right, and so on, consequently, on each story. The plates P P3 P5 P7 have their oscillating motion in the same way. By pressing on the levers Z Z3 Z5 Z7 these levers swing around the axis 1l and lift the balance-weights p 192193, simultaneously drawing down the levers f' f5 f5 f7, which operate the connecting-rods b' h3 b5 hl, which force the bars F' -F3 F5 to move to the left, and thereby the plates of one story are set to swing, as described above. When the workman releases the 1evers Z Z2 Z5 Z7, the balance-weights 1J 19'132193 bring all the plates P' P3 P5 P7 back into their original position. The movement of the plates of the platforms P2 P4 P6 of the intermediate stories is brought about in an analogous manner, but in opposite direction. In this case levers l2 l* ZG are raised. These lift levers f2 ro f4f6, which act upon the connecting-rods b2 b4 196, and these draw the bars F2 F4 F6 to the right. IVhen the levers Z2 Z4 l are released, they adopt again their original position, owing to the action of their own weight, and they set the whole apparatus back into its original-position.

The number of combined chambers, as well as the number of stories in a chamber, and the number of plates P are undetermined and vary with the apparatus and according to the quantity of matter which is to be dried within a given time.

When the kiln is heated, the articles to be dried are spread upon the plates P on the upper story E'in as uniform a layer as possible. After some time the workman proceeds t0 give the plates of this story a rotary movement, preferably by means of the handling of the lever system above described. The drying matter falls to the second story, and the upper story is used again for new matter. After the lapse of the Sametime as taken for the prior operation the workman sets plates P2 of the second story swinging, and the drying matter falls on plate P3 of the third story. IIe then repeats the operation on plates P of the upper story, so that the matter thereon falls to the second story, which had just-been emptied. He ills the upper story again and operates on the three first stories in the abovedescribed manner, keeping this up until all the stories are fed. The workman then sets the plates P7 (per example) of the lower story swinging, and the dried matter falls into the car XV. He proceeds in the same manner with regard to each story, going up from one story to the other, each story receiving the materials of the next upper story until the topmost story is emptied and made ready for a new feeding of drying material.

Whether hot air or gas-fuel be used they will be conducted through a canal D in the direction indicated bythe arrows. The gases expand between each of the stories and escape through an outlet-canal S after having become charged With water. Finally they are let off by a draft-flue R. Air-controlled passages fr, arranged between each story, allow of the distribution of hot air as needed. The outlet-canal S is by preference, as shown in Fig. l, crossed by a certain number of pipes, through which a certain quantity of air circulates. This air becomes heated by utilizing the lost heat of the gases passing through canal S, and which have already been employed. This airis conducted through a canal S either into the apparatus containing hot air or into the gas-conduction canal D, and thereby serves to reduce the consum ption of fuel.

As stated before, this kiln varies with the nature of the material to be dried. It varies in the gage of the stories, their number, the quantity of plates, and their width and length, which are essentially variable. The same applies to the fuel-gas or hot-air apparatus, which may be of any kind.

Having thus described the nature of my invention and its manner of execution, I claim the following as my invention:

In a drying-kiln comprising a chamber C with overlying stories arranged thel'ein, and with movable plates operated from without, the combination of crank-handles m, which hold these movable plates, of pieces L, supplied with notches N, to hold the axles of these cranks, and of the movable angle-iron K', which slips into the walls of the kiln between the beams K, and the said pieces L.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

GUSTAVE DELPLACE.

Witnesses:

GEORGE BEBE, J. DELPLACE. 

